Question

please answer it ASAP

Answer 1

Which question do you want to ask?

However, I am answering to the (ii) part sir/ma'am

When the key is inserted i.e when it is closed,current will flow through the primary coil.The current flowing in the primary coil will create magnetic field around it,also this magnetic field with induce current in secondary coil.This will cause galvanometer needle to deflect.

PLS MARK MY ANSWER AS THE BRAINLIEST